The authors report a case of right midbrain and high pons haemorrhage with complete external ophthalmoplegia, except bilateral convergence, voluntary and automatic-reflex abduction of the left eye and adduction of this eye with vestibulo-ocular reflex ("one-and-a-half syndrome"). There is voluntary-automatic dissociation of the eyelids motricity and the vertical gaze. Still, there is sensitive-motor hemiplegia at left and asterixis.

A case of a hyperactive child with impaired speech, perceptual-motor capacity and interpersonal skills is presented. Presumptive diagnoses are discussed according to the international classifications most often used. The nature of pervasive developmental disorders is examined based on the concepts of theory of mind and theory of executive dysfunction. Keywords: pervasive developmental disorder, theory of mind, theory of executive dysfunction.